Section 279 Income Tax Act 2025 – Income Escaping Assessment

The provisions of income escaping assessment are dealt with under sections 279 to 286 of the Income Tax Act, 2025. Section 279 gives the tax authorities the power to assess or re-assess income, irrespective of whether the return has been filed or has already been assessed. Parallel provisions are covered under sections 147 to 151 of the Income Tax Act, 1961.

What is Section 279 of the Income Tax Act 2025?

Section 279 falls under Chapter XVI of the Income Tax Act 2025, which deals with assessment proceedings. The section specifically addresses situations in which income chargeable to tax was not assessed—or was under-assessed—during a particular tax year. 

Simply speaking, if the tax department realises that you earned income in a previous year but it wasn't included in your tax assessment (either because of non-disclosure, omission, or any other reason), the Assessing Officer can step in and redo the math.

What Does 'Income Escaping Assessment' Mean?

Income escaping assessment refers to any situation where income that was legally chargeable to tax in a given year was either not assessed at all, was under-assessed, or was otherwise left out of the original tax computation. Interestingly, the provisions cover not only income, but also excess deductions, exemptions claimed, and losses set off or carried forward.

Common examples include:

• Undisclosed income from freelance work, rental income, or investments
• Income from a foreign source not reported in the ITR
• Capital gains that weren't accounted for
• TDS credits applied incorrectly, leading to lower income reporting
• Business income is under-reported due to accounting errors or deliberate omission

When Can the Assessing Officer Invoke Section 279?

The AO can invoke Section 279 when they have credible information backing the claim that the taxable income has escaped assessment for any tax year. Notice can be issued within the time limits as prescribed under section 282 of the act. The provisions for the issue of notices are covered under section 281 of the Income Tax Act 2025.

Some valid triggers include:

• Risk management flags generated by the Income Tax Department's internal system
• Audit objections that the assessment with respect to the particular income has not been made as per the act.
• Data from the Annual Information System (AIS) or Statement of Financial Transactions (SFT)
• Data obtained under agreements entered into with the other countries to avoid double taxation (Section 159)
• Findings from a survey conducted under Section 253 of the Act
• Court or tribunal orders directing the AO to revisit an assessment
• Information received under Section 260 (information exchange schemes)

The AO must also obtain prior approval from a specified senior authority before issuing a notice in most cases, particularly when the reassessment is based on information from prescribed channels. 

Powers of the AO Under Section 279(1) and Section 279(2)

Section 279(1) – Primary Reassessment Power

The AO may, subject to the conditions in Sections 280 to 286:

• Assess or reassess the income that had escaped assessment
• Recompute any losses that were carried forward
• Recompute depreciation allowances or other deductions that were claimed

Section 279(2) – Expanded Scope During Proceedings

Once reassessment proceedings are initiated, the AO has additional power. If during the course of the proceedings, any other income issue comes to their notice — even if the formal notice requirements of Section 281 weren't strictly followed for that issue — the AO can reassess that income too.

This expanded scope is important to understand: starting a reassessment can open the door to a broader review of your financials for that year.

Notice under Section 280: What happens after Section 279 is triggered?

Section 279 doesn't operate in isolation. Once the AO decides to reassess, the first formal step is issuing a notice under Section 280.

Here's how the process flows:

1. The AO issues a notice to the assessee, along with a copy of the order passed under Section 281(3).
2.  The notice requires the assessee to furnish a return of income (or income of any person they are responsible for) for the relevant tax year.
3. The taxpayer must respond within the time period specified in the notice — but this period cannot exceed three months from the end of the month in which the notice was issued.
4.  In certain cases (e.g., information received under Section 260 or directions from the Approving Panel), the AO must get prior approval from a higher authority before issuing the notice.

How to Respond to a Reassessment Notice Under Section 279

Receiving a reassessment notice can feel alarming, but staying calm and taking the right steps goes a long way. Here's what you should do:

1. Check the Validity of the Notice: Verify that the notice is issued with proper authority, mentions the correct tax year, and contains a copy of the approval order under Section 281(3).
2. Challenge if Needed: If you believe the reassessment is without proper basis, you can file objections with the AO or appeal to the appropriate authority.
3. Documentation: Evidence such as bank records, investment records, gift deeds, etc., can provide solid backing for the income under assessment.